Influence of sintering time and quenching on the formation of high T c phase

D. Mangapathi Rao; M. Muralidhar; T. Somaiah; V. Hari Babu

doi:10.1007/BF02747315

Influence of sintering time and quenching on the formation of high T_c phase

D. Mangapathi Rao, M. Muralidhar, T. Somaiah, V. Hari Babu

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

Influence of sintering time and quenching in Bi_{2 -x} Pb_x Ca₂Sr₂Cu₃O_y (x=0.0, 0.1, 0.2, 0.25, 0.3 and 0.4) samples have been studied by resistance and XRD measurements. In samples sintered at 850°C for 4 days, T_c(0) increases with Pb concentration. T_c(0) increased from 81 K for x=0.0 to 109 K in x=0.30 sample and then decreased. Increasing the sintering time to 10 days decreased the T_c Quenching further decreased the T_c(0). From X-ray diffraction patterns, the intensity peaks of low and high T_c phases have been measured. The addition of Pb promotes high T_c-phase. Sintering time, slow cooling and rapid quenching studies show that there is an optimum sintering time and cooling rate to produce a high T_c-phase.

Original language	English
Pages (from-to)	199-206
Number of pages	8
Journal	Bulletin of Materials Science
Volume	14
Issue number	2
DOIs	https://doi.org/10.1007/BF02747315
Publication status	Published - 1991 Apr 1
Externally published	Yes

Keywords

Sintering time
high T phase
quenching

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials

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10.1007/BF02747315

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title = "Influence of sintering time and quenching on the formation of high T c phase",

abstract = "Influence of sintering time and quenching in Bi2 -x Pb x Ca2Sr2Cu3O y (x=0.0, 0.1, 0.2, 0.25, 0.3 and 0.4) samples have been studied by resistance and XRD measurements. In samples sintered at 850°C for 4 days, T c(0) increases with Pb concentration. T c(0) increased from 81 K for x=0.0 to 109 K in x=0.30 sample and then decreased. Increasing the sintering time to 10 days decreased the T c Quenching further decreased the T c(0). From X-ray diffraction patterns, the intensity peaks of low and high T c phases have been measured. The addition of Pb promotes high T c-phase. Sintering time, slow cooling and rapid quenching studies show that there is an optimum sintering time and cooling rate to produce a high T c-phase.",

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AU - Rao, D. Mangapathi

AU - Muralidhar, M.

AU - Somaiah, T.

AU - Babu, V. Hari

PY - 1991/4/1

Y1 - 1991/4/1

N2 - Influence of sintering time and quenching in Bi2 -x Pb x Ca2Sr2Cu3O y (x=0.0, 0.1, 0.2, 0.25, 0.3 and 0.4) samples have been studied by resistance and XRD measurements. In samples sintered at 850°C for 4 days, T c(0) increases with Pb concentration. T c(0) increased from 81 K for x=0.0 to 109 K in x=0.30 sample and then decreased. Increasing the sintering time to 10 days decreased the T c Quenching further decreased the T c(0). From X-ray diffraction patterns, the intensity peaks of low and high T c phases have been measured. The addition of Pb promotes high T c-phase. Sintering time, slow cooling and rapid quenching studies show that there is an optimum sintering time and cooling rate to produce a high T c-phase.

AB - Influence of sintering time and quenching in Bi2 -x Pb x Ca2Sr2Cu3O y (x=0.0, 0.1, 0.2, 0.25, 0.3 and 0.4) samples have been studied by resistance and XRD measurements. In samples sintered at 850°C for 4 days, T c(0) increases with Pb concentration. T c(0) increased from 81 K for x=0.0 to 109 K in x=0.30 sample and then decreased. Increasing the sintering time to 10 days decreased the T c Quenching further decreased the T c(0). From X-ray diffraction patterns, the intensity peaks of low and high T c phases have been measured. The addition of Pb promotes high T c-phase. Sintering time, slow cooling and rapid quenching studies show that there is an optimum sintering time and cooling rate to produce a high T c-phase.

KW - Sintering time

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